Answer :

Nelson Mandela International Day is celebrated to honor the legacy of Nelson Mandela and his contributions to peace and freedom. It is observed on July 18th, Mandela's birthday.

To break down the given mathematical expression and ensure that it aligns with the context provided:

[tex]\[ (1 \times 1)(1) \][/tex]

First, calculate inside the parentheses:
[tex]\[ 1 \times 1 = 1 \][/tex]

Then, multiply the result by the term outside the parentheses:
[tex]\[ 1 \times 1 = 1 \][/tex]

Although the mathematical result is 1, this was merely a repetition aligned with the context of the original question about the significance of Nelson Mandela International Day.

In essence, Nelson Mandela International Day, observed on July 18th, commemorates Mandela's efforts towards peace, freedom, and social justice worldwide.